Comparing towed and baited underwater video techniques for assessing temperate marine fishes

Monk, Jacquomo, Ierodiaconou, Daniel, Versace, Vincent L., Rattray, Alex, Stagnitti, Frank and Harvey, Euan 2011, Comparing towed and baited underwater video techniques for assessing temperate marine fishes, in GeoHab 2011 : Conference Abstract volume, [Marine Geological and Biological Habitat Mapping], [Helsinki, Finland], pp. 67-67.

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Title Comparing towed and baited underwater video techniques for assessing temperate marine fishes
Author(s) Monk, Jacquomo
Ierodiaconou, Daniel
Versace, Vincent L.
Rattray, Alex
Stagnitti, Frank
Harvey, Euan
Conference name Marine Geological and Biological Habitat Mapping. Conference (2011 : Helsinki, Finland)
Conference location Helsinki, Finland
Conference dates 3-6 May 2011
Title of proceedings GeoHab 2011 : Conference Abstract volume
Editor(s) Kotilainen, Aarno
Kaskela, Anu
Publication date 2011
Conference series Marine Geological and Biological Habitat Mapping. Conference
Start page 67
End page 67
Publisher [Marine Geological and Biological Habitat Mapping]
Place of publication [Helsinki, Finland]
Summary Accurate estimates of fish species occurrence are important to any species’ assessments and distribution model. With increasing emphasis on nondestructive sampling, underwater video techniques are commonly used without a thorough understanding of their advantages and disadvantages. This study compared data collected from baited remote underwater stereo-video systems (stereo BRUVS) and towed-video systems to determine; (1) the differences between these video techniques in terms of fish assemblages, functional groups (i.e. pelagic carnivore, epibenthic carnivore/omnivore or herbivore) and observability (i.e. conspicuous or cryptic), and (2) what impact do these two techniques have on the interpretation of spatially-explicit, predictive models. We found stereo BRUVS and towedvideo techniques recorded very different assemblages, functional groups and observability categories across structurally complex benthic biological habitats (i.e. macroalgae dominated habitats). However, as the habitat complexity became less (e.g. seagrass and areas with no visible macro-biota) both techniques appeared to provide similar fish assemblage information. We also found considerable differences in the predicted extents of habitat suitability between the two video techniques.
ISSN 0367-5211
Language eng
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category E3 Extract of paper
Persistent URL http://hdl.handle.net/10536/DRO/DU:30042302

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